Question: Suggest why only a small proportion of the absorbed phosphate ions are transported to the growing points. Write two sentences using any of the two points below most water (in xylem) goes to the leaves taking (dissolved) phosphate ions with it ; xylem tissue does not extend into, growing points / shoot tips / root tips ; higher demand for phosphate ions in leaves (for photosynthesis) ; water and phosphate ions are transported upwards in the xylem (not down to root tips); phosphate ions are absorbed in area above root tips (so don't go down); Need Assignment Help?